Svalbard is the unincorporated island where the Global Seed Vault is located.
Here is an article about the mailbox.
Since this is an off topic day, I will add ancient photos of the Jean who does not need to find adventures on other continents. All I need is a local workshop with the illustrious Peter Thornton, the guy in the black shirt. This was my very first calligraphy workshop - at least 20 years ago. I had only taken one italic class and one pointed brush class. Peter launched my career. In the top photo, I am sitting next to Barbara Bruene. During lunch, someone asked me if I was intimidated sitting next to Barbara. I was such a beginner, I did not even know who she was. She taught calligraphy at Iowa State University and is very well known in calligraphic circles. That she was attending a class with Peter illustrates that no matter how far along you are on the learning curve, it is still worthwhile to attend a workshop with someone you admire.